South Kalimantan, Kapuas River

Kapuas River

Kapuas-River_ton

The Kapuas River (or Kapueas) is a river in the Indonesian part of Borneo island. It originates in the Müller Mountain Range at the center of the island and flows south until merging with the Barito River and discharging into the Java Sea.[1] It should be distinguished from another Kapuas River, which starts on the other side of the same mountain range in central Borneo, but flows to the west and empties to the South China Sea.

The river is about 600 km (370 mi) long and up to 6 m (20 ft) deep. It flows through marshy region rich in tropical forests, nearly parallel to the Barito River, and merges with the latter about 60 km from the Java Sea coast, within the town of Kualakapuas (lit. mouth of Kapuas in Indonesian). Between 1880 and 1890, a 30 km long canal was dug by the Dutch colonizers between the Kapuas and Barito river for agricultural purposes.[2] The Kapuas River is narrow (about 50 m) and very winding in its upper stream. It straightens and widens up to 450 m in its lower reaches. There, it contains several elongated islands (shorter than 2 km). Its discharge rate varies through the year reaching the maximum in the peak of rainy seasons in April and November. The river is navigable up to 420 km² from the mouth.[1] Significant deposits of coal and gold were discovered upstream. Because of the lack of infrastructure, the gold is mined mostly by primitive methods, with only one commercial mine on the river, and the coal is not explored yet.[3] Several bridges crossing the Kapuas River. One of them, located near the village Lungku Layang, Timpah (Indonesian: Kecamatan Timpah), Kapuas District (Indonesian: Kabupaten Kapuas), Central Kalimantan, collapsed on 3 April 2009 killing one and injuring 6 people working under the bridge.[4]

Barito Bridge

The Barito Bridge is the third longest cable stayed span in Indonesia with 230 meters length after Kutai Kartanegara Bridge (270 meters) and Mamberamo Bridge (235 meters), but the Kutai Kartanegara Bridge has collapsed in November 2011.[5]

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